Billiard



(Nomodel') D. s. ROBILLIARD au c. G. DAVIBS.

GAS BURNER AND HEATER.

No. 403,612. Patented May 21, 1889.1

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UNITED STATES PATENT OFFICE..

DANIEL SEBIRE ROBLLIARD AND CHARLES GRIFFITHS DAVIES, OF QUEBEC, QUEBEC,CANADA.

GAS BURNER AND HEATER.

SPECIFICATION forming part of Letters Patent No. 408,612, dated May 21,1889 Application filed .l'uly 3l, 1888.

To all whom t may concern:

Be it known that we, DANIEL SEBIRE RO- BILLIARD and CHARLES GRIFErrHsDAvIEs, both of Quebec, in the Province of Quebec and Dominion ofCanada, have invented a new and Improved Gas Burner and Heater, of whichthe following is a full, clear, and exact description.

Our invention relates to an' improvement in gas burners and heaters, andhas for itsobject to provide a burner, designed for heating and cookingpurposes, of smple and economical construction, whereby a great savingin the consumption of gas will be secured; and a further object of theinvention is to provide a burner wherein an effective admiXture andexpansion of gas and air will be obtained and the best possible resultsaccomplished from a minimum quantity of gas.

The invention consists in the novel construction and combination of theseveral parts, as will be hereinafter more fully set forth, and pointedout in the claim.

Reference is to be had to the accompanying drawings, forming a part ofthis specilication, in which similar letters or figures of referenceindicate corresponding parts in all the views.

Figure 1 is a central vertical section through the burner, and Fig. 2 isa plan view of the same with the crown-piece removed.

ln carrying out the invention the lower portion or body of the burnerconsists of a bellshaped casting, 10, the interior of which is adaptedto constitute an air-chamber,11. The upper portion of the bell-shapedbody is provided with a shoulder, 12, and an integral ring, 13,projected vertically upward from the said shoulder, as best shown inFigl 1. The lower portion or base of the body consists of a detachablering, 14., having an integral erssbar7 15, spanning the center, and avertical flange near the periphery purposed to en gage the inner wall ofthe body. An elbow, 16, is cast integral with t-he center of the saidcrossbar, the vertical member whereof is passed upward into theair-chamber 11, the horizontal member being adapted to receive thegas-supply pipe 17.

The head 1S of the burner consists of an annular base-plate, 19, havinga central open- Serial No. 281,537. (No model.)

ing, 20, and a collar, 21, surrounding the said opening, extendingvertically upward, as best illustrated in Fig. .1, the space within thecollar being adapted to constitute a retort or mixing-chamber, 22.

Upon the under side of the annular baseplate 1f), a short distance fromthe opening 20, a downwardly-projeeting flange, 23, is cast, whichflange is purposed to engage with the outer face of the body-collar 123,and from the upper face of the said base-plate 19, near `the periphery,an upwardly extending vertical flange, 21, is projected, the said flangebeing so located that a space will intervene between the inner face ofthe flange and the opposed face of t-he collar 21.

From the walls of the opening 2() in tho base-plate a series ofdownwardly-curved solid spider-like arms, 25, are extended,wh 1ch armsare united at the center of the opening 20, below the bottom of thebase-plate 19, by an integral tubular cap, 2G, and in the upper face ofthe said cap a small central aperture, 27, is made.

rlhe base-plate 19 of the head is connected with the body 10 and thebase-ring 14 of the said body, and held in connection with the samethrough the medium of a gas-inlet pipe, 2S, secured in the bottom of thecap 26 and the inner end of the elbow 1G, as shown in Fig. 1. The head18 of the burner is completed by the addition of the ring 30, restingupon the surface of the base-plate outside of the flange 2l, the saidring or band 340 hav1ng produced upon the upper edge a series ot' spacedlugs or teeth, 31, as best illustratedin Fig. 2.

\Vithin the ring or band a cap, 32, of smaller diameter than the saidring, is concentrieally held by a series of three or more horizontalsupports, 33, cast integral with the upper face of the ring 30 andtheopposed surface of the said cap. The outer edge of the cap 32 isprovided with an upwardly-extending tlange, 34. The cap 32 is purposedto cover the upper end of the retort or mixing-chamber, and is held aslight distance above the same, the diameter of the said cap beinggreater than that of the collar 21,form ing the walls of the retort ormixing-chamber. Thus an annular chamber, 35, is obtained sur- TOO engagethe top of the collar 21, and is so ad-vv justed as to insure the properadmixture of the gas and air. The annular crown-piece 37 is made to restupon the flange 34 of the cap 32,

which crown-piece extends beyond the outer edges of the teeth orprojections 31, and is provided upon the under face with two spacedannular flanges, 39, one flange being adapted to engage the outersurface of the cap-flange 34, and the other flange the inner surface ofthe teeth or projections 31, at or near the top thereof. Thecrown-'piece 37 and the sections of the head 18 are preferably united bytwo or more bolts, Lil), riveted to the said crownpiece and passingrthrough apertures in the horizontal supports 33, and likewise in thebase-plate Within the flange 24, the lower extremities of said boltsbeing provided with nuts or other equivalent fastening devices.

The burneris held in suspension Within the stove-opening, or otherdesired place, through the medium of a yoke, 4:1, which yoke clamps thevouter surface of the body-ring 13 and rests upon t-he shoulder 12. Ahollow space intervening the crown-piece and the cap 32` is-intended asan airspace,purposed to keep the top of the burner as cool as possible,to prevent the too sudden heating of the gas in the retort ormixing-chamber 22, and to allow the gasto expand more freelyand mingleout through the space intervening the walls u Patent- The combination,with a base-plate, 19, having a central opening surrounded by an up-Wardlyextending collar, 2l, and provided near the outer edge with anannular vertical flange, 24, lugs or arms 25, projected radially fromthe inner wall of the base-plate opening, an interiorly-threaded cap,26, supported y centrally within the opening of the base-plate by saidarms 25, and `having in the top an aperture, 27, and a gas-supply pipescrewed in the said cap, of a ring, 30, supported upon the base-plate19, outside of the flange 24, a cap-plate attached To the said ringbyhorizontal arms and supported thereby a slight distance above thecollar of the base-plate 19,

.5o claim as new and desire to secure by Letters the said cap-plate 32being provided With downwardly and upwardly extending peripheralflanges, the inner Walls ofv which are spaced from the outer wall of thebase-collar 21, teeth formed upon the upper edge of the ring 30, and acrown-piece, 37, resting upon the upper flanged cap -plate and extendingover and beyond the said teeth, substantially as shown and described,whereby a commingling-chamber, 22, is formed, having an outlet in thecircuitous chambers 35 and 36, and a cooling-space provided betweenthecap-plate and the crown-piece, as and for the purpose specified.

DANIEL SEBIRE ROBILLIARD.

CHARLES GRIFFITHS DAVIES.

Witnesses:

CHAs. B. SRADDOW, GEORGE DAFFETT.

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